Finding the Fourth Proportional to 1,886.59, 2,603.91 and 1,100.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,886.59 : 2,603.91 = 1,100.76 : x
2. Step 2: Convert to fraction form
   1,886.59/2,603.91 = 1,100.76/x
3. Step 3: Cross multiply
   1,886.59x = 2,603.91 × 1,100.76
4. Step 4: Simplify right side
   1,886.59x = 2,866,279.97
5. Step 5: Solve for x
   x = 2,866,279.97/1,886.59
6. Step 6: Final answer
   x = 1,519.29